strive
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B2 verb /straɪv/

strive

esforzarse
Meaning
To make great efforts to achieve or obtain something.
Example
She strives to be the best student in her class.
Ella se esfuerza por ser la mejor estudiante en su clase.
A2 adjective /ˈsaɪ.lənt/

Silent

silencioso; callado; tranquilo
Meaning
making no sound; quiet; not speaking
Example
The library was completely silent during study hours.
La biblioteca estaba completamente silenciosa durante las horas de estudio.
B2 adjective /ˈstɑː.ri/

Starry

estrellado; brillante;
Meaning
full of stars; shining like stars; relating to stars
Example
We enjoyed the starry night sky while camping in the mountains.
Disfrutamos del cielo estrellado mientras acampábamos en las montañas.
C1 adjective /ˈstʌm.pi/

Stumpy

bajo y grueso
Meaning
short and thick; having a short, thick appearance
Example
The stumpy little dog wagged its tail enthusiastically.
El perrito bajo y grueso movió su cola con entusiasmo.
C1 noun /sɪˈdʌk.ʃən/

Seduction

seducción; tentación
Meaning
the action of seducing someone; temptation to do something wrong
Example
He fell victim to the seduction of easy money.
Cayó víctima de la seducción del dinero fácil.
C1 adjective /səbˈdʒɛktɪv/

subjective

subjetivo
Meaning
based on personal feelings, tastes, or opinions rather than facts
Example
Beauty is often considered a subjective concept.
La belleza a menudo se considera un concepto subjetivo.
A2 noun /siːt/

seat

asiento
Meaning
a place to sit, especially a chair or other place for sitting
Example
I reserved a seat for you at the concert.
Reservé un asiento para ti en el concierto.
B2 verb səˈpres

suppress

reprimir
Meaning
To forcibly put an end to; to restrain or subdue.
Example
Authorities must suppress criminal activities in campuses.
Las autoridades deben reprimir las actividades criminales en los campus.
B2 noun/verb /ˈsoʊ.ɪŋ/

sewing

costura
Meaning
The activity or skill of joining fabric using a needle and thread
Example
She enjoys sewing her own clothes on weekends.
Ella disfruta cosiendo su propia ropa los fines de semana.
C1 adjective /sɪˈkluːdɪd/

secluded

aislado
Meaning
Placed apart from other people or things; private and quiet.
Example
They spent their vacation in a secluded beach house.
Pasaron sus vacaciones en una casa de playa aislada.
B1 noun ˈseʃən

session

sesión
Meaning
A meeting of an official body, especially a legislature, council, or court of law, to conduct its business.
Example
The session was held on February 25.
La sesión se celebró el 25 de febrero.
C1 adjective /ˌsuːɪˈsaɪdəl/

Suicidal

suicida
Meaning
relating to or having thoughts of killing oneself; extremely dangerous or harmful
Example
The reckless driving was suicidal behavior.
La conducción imprudente fue un comportamiento suicida.
C2 noun /seɪn/

seine

gran red
Meaning
A large fishing net that hangs vertically in the water.
Example
The fishermen cast their seine into the river.
Los pescadores echaron su gran red en el río.
A2 noun /ʃɔːrts/

shorts

pantalones cortos
Meaning
a short garment worn on the lower half of the body that covers each leg separately, usually above the knees.
Example
He wore a pair of blue shorts to the beach.
Él usó un par de pantalones cortos azules en la playa.
C2 noun /ˈsætræp/

satrap

satrapa
Meaning
a governor of a province in ancient Persia; also used figuratively for a subordinate ruler
Example
The king appointed a satrap to oversee the distant province.
El rey nombró a un satrapa para supervisar la provincia distante.
C1 adjective /ˈsʌlən/

sullen

gruñón
Meaning
bad-tempered and gloomy; silently resentful
Example
She gave him a sullen look and walked away.
Ella le dio una mirada gruñona y se fue.
C1 verb /səbˈstænʃieɪt/

substantiate

substanciar
Meaning
To provide evidence to support or prove the truth of something.
Example
The lawyer worked to substantiate the claims with solid evidence.
El abogado trabajó para substanciar las reclamaciones con pruebas sólidas.
C1 noun/verb /skɜːrdʒ/

scourge

maldición / flagelo
Meaning
A source of great pain or punishment; to whip or inflict suffering on someone.
Example
Disease and poverty remain a scourge in many regions.
La enfermedad y la pobreza siguen siendo una maldición en muchas regiones.
C1 noun /ˈstjuːpər/

stupor

estupor
Meaning
a state of near-unconsciousness or insensibility
Example
He remained in a stupor after hearing the shocking news.
Él permaneció en un estupor después de escuchar la noticia impactante.
B2 verb /ˈsɪmbəlaɪz/

symbolize

simbolizar
Meaning
to represent or stand for something else
Example
The dove symbolizes peace across cultures.
La paloma simboliza la paz a través de las culturas.
C1 noun /ˈsæf.aɪər/

Saphire

zafiro
Meaning
a precious stone that is typically blue in color
Example
The royal crown was adorned with a large sapphire.
La corona real estaba adornada con un gran zafiro.
B2 noun /ˈsɑːrˌkæzəm/

sarcasm

sarcasmo
Meaning
The use of irony to mock or convey contempt.
Example
His sarcasm often made people laugh but sometimes offended them.
Su sarcasmo a menudo hacía reír a la gente, pero a veces los ofendía.
B2 adjective /spɒnˈteɪniəs/

Spontaneous

espontáneo
Meaning
done without planning; natural and unforced
Example
Their spontaneous dance in the rain was beautiful.
Su danza espontánea en la lluvia fue hermosa.
A1 adverb /ˈsʌm.taɪmz/

Sometimes

a veces
Meaning
at times; occasionally; now and then
Example
Sometimes I go for a walk in the evening.
A veces doy un paseo por la tarde.
C1 adjective /ˈʃɑːdi/

shoddy

de mala calidad
Meaning
badly made or done; of poor quality
Example
The contractor did a shoddy job on the repairs.
El contratista hizo un trabajo de mala calidad en las reparaciones.
A1 noun /ˈsæləd/

salad

ensalada
Meaning
a dish consisting of various ingredients, typically including vegetables, which are usually mixed with a dressing
Example
She made a fresh salad with lettuce, tomatoes, and cucumbers.
Ella preparó una ensalada fresca con lechuga, tomates y pepinos.
C1 verb /skʌf/

scuff

rasguñar
Meaning
to mark or scratch the surface of something by rubbing
Example
He scuffed his shoes on the pavement.
Él rasguñó sus zapatos en la acera.
C1 adjective /ˈsɛptɪk/

septic

infectado
Meaning
Infected with harmful bacteria; relating to or causing infection.
Example
The doctor treated the patient's septic wound immediately.
El doctor trató la herida séptica del paciente de inmediato.
C1 adjective /ˌsuː.pəˈsɒn.ɪk/

Supersonic

más rápido que la velocidad del sonido; relacionado con velocidades mayores que la del sonido
Meaning
faster than the speed of sound; relating to speeds greater than the speed of sound
Example
The supersonic jet broke the sound barrier.
El avión supersónico rompió la barrera del sonido.
C2 verb /ˈsʌpjʊˌreɪt/

suppurate

supurar
Meaning
to form or discharge pus, usually as a result of infection
Example
The wound began to suppurate after a few days.
La herida comenzó a supurar después de unos días.
B2 noun /ˈsikwəns/

Sequence

secuencia
Meaning
a particular order in which related events, movements, or things follow each other; a set of related events, movements, or things that follow each other in a particular order
Example
The dance sequence was perfectly choreographed.
La secuencia de baile fue perfectamente coreografiada.
B2 verb /skæn/

scan

felicidad
Meaning
To look at something carefully or quickly; to digitally copy or capture an image or document.
Example
She scanned the document before sending it by email.
Ella no pudo ocultar su felicidad cuando recibió el premio.
B1 noun, verb /ˈseɪ.lɪŋ/

sailing

navegación a vela
Meaning
The act of traveling in a boat or ship using sails; the sport or activity of navigating a boat with sails.
Example
We went sailing on the lake during the summer.
Fuimos a navegar en el lago durante el verano.
B2 adjective /ˈsæv.ɪdʒ/

Savage

salvaje; feroz; incivilizado
Meaning
extremely cruel or violent; wild and fierce; uncivilized
Example
The savage attack shocked everyone.
El ataque salvaje sorprendió a todos.
B2 adverb /səˈfɪʃəntli/

sufficiently

suficientemente
Meaning
to an adequate degree or extent
Example
She studied sufficiently to pass the exam.
Ella estudió suficientemente para aprobar el examen.
B1 verb /stæmp/

stamp

estampar / pisotear
Meaning
To bring down (one's foot) heavily on the ground; to imprint a mark or seal.
Example
She stamped her foot in frustration.
Ella estampó su pie por frustración.
B2 adjective /ˈspaɪ.rəl/

Spiral

espiral
Meaning
winding in a continuous curve; helical
Example
The spiral staircase led to the top floor.
La escalera espiral condujo al piso superior.
A2 adjective /ˈʃaɪ.ni/

Shiny

brillante; reluciente;
Meaning
reflecting light; bright and polished; glossy
Example
The shiny new car caught everyone's attention.
El coche nuevo brillante llamó la atención de todos.
A2 noun /spɒt/

spot

lugar
Meaning
a particular place or position
Example
I found a great spot for a picnic in the park.
Encontré un gran lugar para hacer un picnic en el parque.
B2 noun /ˈsliːpər/

sleeper

persona que duerme; algo que tiene éxito inesperado
Meaning
a person or thing that sleeps; something that unexpectedly succeeds
Example
The movie turned out to be a real sleeper hit.
La película resultó ser un éxito inesperado.
B1 noun/verb /skɔːr/

score

puntuación
Meaning
a number of points achieved in a game or test; to gain points or achieve a goal
Example
He scored the winning goal in the final match.
Él marcó el gol ganador en el partido final.
A2 noun /ʃer/

Share

parte
Meaning
a portion of something; a part or portion of a larger amount
Example
Each partner received an equal share of the company profits.
Cada socio recibió una parte igual de las ganancias de la empresa.
C1 noun sælˈveɪʃən

salvation

salvación
Meaning
Deliverance from sin and its consequences, believed by Christians to be brought about by faith in Christ.
Example
The story revolves around the theme of salvation.
La historia gira en torno al tema de la salvación.
C1 noun /ˌspɒn.təˈneɪ.ɪ.ti/

spontaneity

espontaneidad
Meaning
The quality of being spontaneous; natural and unplanned behavior.
Example
His spontaneity makes him a great conversationalist.
Su espontaneidad lo convierte en un gran conversador.
C2 noun /ˈsɪnəd/

synod

sínodo
Meaning
An assembly of the clergy in a Christian church convened to decide on issues of doctrine or administration.
Example
The synod gathered to discuss reforms in the church.
El sínodo se reunió para discutir reformas en la iglesia.
B2 adjective /sɑːrˈkæstɪk/

sarcastic

sarcástico
Meaning
Using irony or mockery to convey contempt or humor.
Example
She made a sarcastic remark about his cooking.
Hizo un comentario sarcástico sobre su cocina.
B2 noun /spaɪs/

spice

especia
Meaning
a substance used to add flavor to food
Example
She added a pinch of spice to the curry for extra flavor.
Ella añadió una pizca de especias al curry para darle más sabor.
B2 adverb /ˈstɛdɪli/

steadily

de manera constante
Meaning
in a regular and continuous way; without stopping or changing
Example
The company's profits have been increasing steadily.
Las ganancias de la empresa han aumentado de manera constante.
B2 noun ˈsəʊ.lər ˈen.ə.dʒi

solar energy

energía solar
Meaning
Energy from the sun that is converted into thermal or electrical energy.
Example
Solar energy is vital for reducing carbon emissions.
La energía solar es vital para reducir las emisiones de carbono.
C1 adjective /ˈstɛriəˌtaɪpt/

stereotyped

estereotipado
Meaning
Conforming to a fixed or oversimplified idea of what someone or something is like.
Example
His stereotyped jokes failed to impress the audience.
Sus chistes estereotipados no lograron impresionar a la audiencia.
B2 verb /ˈsteɪ.bə.laɪz/

stabilize

estabilizar
Meaning
to make something steady, secure, or unlikely to change suddenly
Example
The government took measures to stabilize the economy.
El gobierno tomó medidas para estabilizar la economía.
C2 noun /ˌsɒ̃ˈfrwɑː/

sangfroid

autocontrol
Meaning
Composure or coolness under pressure.
Example
She impressed everyone with her sangfroid during the interview.
Ella impresionó a todos con su autocontrol durante la entrevista.
B2 noun /stəˈbɪl.ə.ti/

Stability

estabilidad
Meaning
the state of being stable; firmness; steadiness
Example
Political stability is essential for economic growth.
La estabilidad política es esencial para el crecimiento económico.
B1 verb /skɪp/

skip

saltar
Meaning
to omit or pass over something; to move lightly or quickly
Example
He decided to skip breakfast and go straight to work.
Decidió saltarse el desayuno e ir directamente al trabajo.
C1 noun /ˈstɪklər/

stickler

persona estricta con las normas
Meaning
a person who insists on a certain quality or standard of behavior
Example
He is a stickler for punctuality and never tolerates delays.
Él es muy estricto con la puntualidad y no tolera retrasos.
B1 adjective /ˈsɔːlti/

Salty

salado
Meaning
having the taste of salt; containing salt; tasting of seawater
Example
The salty ocean water made her thirsty.
El agua salada del océano la hizo tener sed.
C1 verb/noun /skaʊl/

scowl

fruncir el ceño
Meaning
To frown in an angry or bad-tempered way.
Example
She scowled when she heard the unfair remark.
Ella frunció el ceño cuando escuchó el comentario injusto.
B1 noun /ˈʃæd.oʊ/

Shadow

sombra
Meaning
a dark area where light is blocked by something; a person's silhouette
Example
The tree cast a long shadow across the garden in the evening.
El árbol proyectó una larga sombra sobre el jardín por la tarde.
C1 noun /ˈsʌm.ɪt əv ðə ˈfjuː.tʃər/

Summit of the Future

Cumbre del futuro
Meaning
A high-level conference focused on addressing future challenges and opportunities.
Example
The Summit of the Future addressed global challenges.
La Cumbre del Futuro abordó los desafíos globales.
C1 verb /səbˈsɪst/

subsist

subsistir
Meaning
To maintain or support oneself, especially at a minimal level.
Example
Many villagers still subsist on fishing and farming.
Muchos aldeanos todavía subsisten de la pesca y la agricultura.
C1 noun /ˈspiːʃiː/

specie

moneda
Meaning
money in the form of coins rather than notes or credit
Example
The transaction was made in specie.
La transacción se hizo en monedas.
C1 noun /skwɔːl/

squall

ráfaga
Meaning
a sudden violent gust of wind, often accompanied by rain, snow, or sleet
Example
A sudden squall caught the sailors off guard.
Una ráfaga repentina sorprendió a los marineros.
C2 noun /ˈstrɪk.tʃər/

stricture

restricción, crítica
Meaning
a restriction or limitation; a critical remark
Example
The new law placed a severe stricture on free speech.
La nueva ley impuso una restricción severa a la libertad de expresión.
C1 noun /səˈprɑːnoʊ/

soprano

la voz más alta femenina o de niño
Meaning
the highest female or boy’s singing voice
Example
She sang beautifully in the soprano range during the concert.
Ella cantó hermosamente en el rango soprano durante el concierto.
B2 adjective /slɪm/

slim

delgado
Meaning
thin in an attractive or healthy way; small in amount or chance
Example
She looked slim in her new dress.
Ella se veía delgada en su nuevo vestido.
B2 noun /ˈsiː.krə.si/

Secrecy

secreto
Meaning
the practice of keeping something secret; the state of being kept hidden
Example
The project was conducted in complete secrecy.
El proyecto se llevó a cabo en completo secreto.
B1 noun/verb /skeɪl/

scale

escala / aumentar el tamaño
Meaning
A system of ordered marks used for measurement; also means to climb or to adjust in size.
Example
The company plans to scale its operations globally.
La empresa planea escalar sus operaciones globalmente.
B2 noun /ˈsɜr.neɪm/

Surname

apellido
Meaning
a hereditary name common to all members of a family; family name
Example
Please write your first name and surname on the form.
Por favor, escriba su primer nombre y apellido en el formulario.
B2 noun /ˈʃɔːr.tɪdʒ/

Shortage

escasez
Meaning
a lack or deficiency of something that is needed or expected
Example
There is a severe water shortage in the region.
Hay una grave escasez de agua en la region.
B1 noun /sʌm/

sum

suma
Meaning
the total amount resulting from the addition of two or more numbers or items
Example
The sum of 8 and 12 is 20.
La suma de 8 y 12 es 20.
B2 noun /sɜːˈveɪ.ləns/

surveillance

vigilancia
Meaning
Close observation, especially of a suspected spy or criminal; continuous watching of a place, person, or situation.
Example
Government agencies conduct surveillance on cyber threats.
Las agencias gubernamentales realizan vigilancia sobre las amenazas cibernéticas.
B1 noun /ˈsæm.pəl/

Sample

muestra
Meaning
a small part taken as an example of the whole; a specimen
Example
The doctor took a blood sample for testing.
El doctor tomó una muestra de sangre para la prueba.
A2 noun /ˈstændərd/

standard

estándar
Meaning
a level of quality or achievement, or a measure of comparison
Example
This car meets all the safety standards.
Este coche cumple con todos los estándares de seguridad.
C1 adjective ˈskruː.pjʊ.ləs

scrupulous

escrupuloso
Meaning
Diligent, thorough, and extremely attentive to details; having moral integrity; acting in strict regard for what is considered right or proper.
Example
He is known for being scrupulous in his work.
Es conocido por ser escrupuloso en su trabajo.
C1 verb /ˈstrætɪfaɪ/

stratify

estratificar
Meaning
to arrange or divide into layers, classes, or categories
Example
The researchers plan to stratify the data based on age groups.
Los investigadores planean estratificar los datos según los grupos de edad.
C1 adjective /ʃruːd/

Shrewd

astuto; inteligente; perspicaz
Meaning
having or showing sharp powers of judgment; astute
Example
The shrewd businessman made a profitable deal in the competitive market.
El astuto hombre de negocios hizo un trato rentable en el mercado competitivo.
C1 adjective /ˈsɜːrvaɪl/ or /ˈsɜːrvəl/

servile

servil
Meaning
having or showing an excessive willingness to serve or please others
Example
His servile attitude annoyed his colleagues.
Su actitud servil molestaba a sus compañeros.
B2 adjective /ˈʃeɪ.di/

Shady

sombrío; sospechoso; deshonesto;
Meaning
providing shade; dishonest; suspicious
Example
The shady businessman made a suspicious deal.
El comerciante sombrío hizo un trato sospechoso.
C1 noun /ˌstætʃuˈɛt/

statuette

estatuilla
Meaning
A small statue, usually decorative or artistic.
Example
The artist won a gold statuette for his work.
El artista ganó una estatuilla de oro por su trabajo.
C1 adjective /ˈskeɪðɪŋ/

scathing

crítica mordaz
Meaning
severely critical; harshly scornful
Example
The critic wrote a scathing review of the movie.
El crítico escribió una crítica mordaz de la película.
A2 adverb /ˈsɪə.ri.əs.li/

seriously

seriamente
Meaning
in a solemn or thoughtful manner
Example
She took the matter very seriously.
Ella tomó el asunto muy seriamente.
C1 verb ˈsɪn.ɚ.dʒaɪz

synergize

sinergizar, combinar de manera que aumente la efectividad.
Meaning
combine in such a way as to enhance effectiveness.
Example
The departments must synergize to improve efficiency.
Los departamentos deben sinergizar para mejorar la eficiencia.
C1 noun ˈsɪn.tæks

syntax

sintaxis
Meaning
The arrangement of words and phrases to create well-formed sentences in a language.
Example
Programming languages follow strict syntax rules.
Los lenguajes de programación siguen estrictas reglas de sintaxis.
C2 noun /ˈseɪ.ɡoʊ/

Sago

sago
Meaning
starchy foodstuff obtained from the pith of various tropical palm stems
Example
She prepared sago pudding for dessert.
Ella preparó pudín de sago para el postre.
B2 noun /ˈʃʌv.əl/

Shovel

pala
Meaning
a tool with a broad flat blade and long handle used for digging and moving earth, snow, or other materials
Example
He grabbed a shovel to clear the snow from the driveway.
Él agarró una pala para limpiar la nieve del camino de entrada.
C2 adjective /sɪər/

sere

seco
Meaning
Dry or withered, especially vegetation.
Example
The sere leaves crumbled under his feet.
Las hojas secas se desmoronaron bajo sus pies.
C1 noun /ˈstændˌstɪl/

standstill

paro
Meaning
a situation in which all movement or activity stops
Example
The traffic came to a standstill after the accident.
El tráfico llegó a un paro después del accidente.
A2 noun /sɜːr/

sir

señor
Meaning
a respectful or formal form of address used for a man, typically one of higher social status or authority
Example
Sir, may I assist you with your order?
Señor, ¿puedo asistirle con su pedido?
C1 noun /ˈspɪnstər/

spinster

soltera
Meaning
An unmarried woman, often one who is older and considered unlikely to marry
Example
The novel featured a kind-hearted spinster who cared for the village children.
La novela presentó a una soltera de buen corazón que cuidaba a los niños del pueblo.
C1 noun /ˈstɛnsəl/

stencil

plantilla
Meaning
A thin sheet of material with a design cut out, used to produce the design on the surface below by applying paint or ink through the cut-out holes.
Example
The artist used a stencil to paint identical stars on the wall.
El artista usó una plantilla para pintar estrellas idénticas en la pared.
C1 adjective /ˌsɛlf ɪˈfeɪsɪŋ/

self-effacing

modesto
Meaning
not drawing attention to oneself; modest
Example
Despite his success, he remained self-effacing and humble.
A pesar de su éxito, él se mantuvo modesto y humilde.
A2 noun /stʌf/

stuff

cosas
Meaning
a collection of things or materials, typically unspecified or uncountable
Example
She packed all her stuff into the suitcase.
Ella empacó todas sus cosas en la maleta.
B2 noun ˈstræt.ɪ.dʒiz

strategies

estrategias
Meaning
A plan of action designed to achieve a long-term or overall aim; the art of planning and directing operations.
Example
Effective strategies can mitigate climate change impacts.
Las estrategias efectivas pueden mitigar los impactos del cambio climático.
C1 noun /səbˈmɪtəl/

submittal

entrega
Meaning
the act of submitting something, especially a document for consideration or approval
Example
The contractor sent the submittal to the client for approval.
El contratista envió la entrega al cliente para su aprobación.
A2 adjective /ˈsɪr.i.əs/

Serious

grave; serio; importante;
Meaning
thoughtful; grave; requiring careful consideration; not joking
Example
This is a serious matter that needs immediate attention.
Este es un asunto serio que necesita atención inmediata.
C2 adjective /ˈsɪŋkəˌpeɪtɪd/

syncopated

sincopado
Meaning
Characterized by displaced beats or rhythms, especially in music.
Example
The jazz piece had a syncopated rhythm that energized the crowd.
La pieza de jazz tenía un ritmo sincopado que energizó a la multitud.
A1 adjective /sæd/

sad

triste
Meaning
feeling or showing sorrow; unhappy
Example
She felt sad after hearing the bad news.
Ella se sintió triste después de escuchar las malas noticias.
C2 verb /ˈsæŋktɪfaɪ/

sanctify

santificar
Meaning
to make holy or sacred; to purify
Example
The priest will sanctify the marriage ceremony.
El sacerdote santificará la ceremonia de matrimonio.
C1 noun /sɔːd fɪʃ/

Sword fish

pez espada
Meaning
A large marine fish with an elongated bill resembling a sword
Example
The swordfish can swim at speeds up to 60 mph.
El pez espada puede nadar a velocidades de hasta 60 mph.
A2 adjective /swiːt/

Sweet

dulce; amable; agradable
Meaning
having a pleasant taste; kind and gentle; pleasing
Example
She has a sweet voice that everyone loves to hear.
Ella tiene una dulce voz que a todos les encanta escuchar.
B2 noun /ˈsɪr.i.əs.nəs/

Seriousness

seriedad; importancia
Meaning
the quality of being serious; gravity; importance
Example
The seriousness of the situation became clear when the doctor spoke.
La seriedad de la situación quedó clara cuando el doctor habló.
B2 verb /stɪtʃ/

stitch

felicidad
Meaning
to sew with needle and thread; to join pieces of fabric
Example
She will stitch the torn dress carefully.
Ella no pudo esconder su felicidad cuando recibió el premio.
B2 adjective /ˈsiː.z ə n.əl/

Seasonal

estacional
Meaning
relating to or occurring in a particular season; changing according to the seasons
Example
Many businesses hire seasonal workers during the holidays.
Muchas empresas contratan trabajadores estacionales durante las vacaciones.
C2 adjective /ˈslʌvənli/

slovenly

desordenado
Meaning
Untidy or careless in appearance, habits, or work.
Example
His slovenly appearance made a bad impression at the interview.
Su apariencia desordenada causó una mala impresión en la entrevista.
C1 verb /spɜːrn/

spurn

rechazar con desdén
Meaning
To reject something or someone with disdain or contempt.
Example
She spurned his offer of help.
Ella rechazó su oferta de ayuda con desdén.
C2 adjective /sɪˈnæp.tɪk/

synaptic

sináptico
Meaning
Related to the signal transmission process between nerve cells.
Example
Learning strengthens synaptic connections in the brain.
El aprendizaje fortalece las conexiones sinápticas en el cerebro.
C1 verb/noun /snɑːrl/

snarl

gruñido, atasco
Meaning
to growl aggressively with bared teeth; a tangle or mess
Example
The dog snarled at the stranger near the gate.
El perro gruñó al extraño cerca de la puerta.
C1 adjective ˈsɒvrɪn

sovereign

soberano, supremo
Meaning
Possessing supreme or ultimate power; independent.
Example
The sovereign government has control over its currency.
El gobierno soberano tiene control sobre su moneda.
C2 noun /ˌsɪŋ.krəˈnɪs.ɪ.ti/

synchronicity

sincronía
Meaning
The meaningful coincidence of two or more events that are not planned.
Example
The synchronicity of their thoughts amazed everyone.
La sincronía de sus pensamientos asombró a todos.
B2 verb /ˈsʌməraɪz/

summarize

resumir
Meaning
To give a brief statement of the main points of something
Example
She summarized the report in just a few minutes.
Ella resumió el informe en solo unos minutos.
B2 noun səˈsteɪnəbl dɪˈvɛləpmənt

Sustainable Development

desarrollo sostenible
Meaning
Development that meets present needs without compromising the ability of future generations to meet their own needs.
Example
Eco-tourism contributes to sustainable development in local communities.
El ecoturismo contribuye al desarrollo sostenible en las comunidades locales.
A2 noun /ʃiːp/

sheep

oveja
Meaning
a farm animal with thick wool that is raised for its wool, meat, and milk
Example
The farmer keeps a large flock of sheep.
El granjero mantiene un gran rebaño de ovejas.
C2 noun/verb /ˈsoʊdʒɜrn/

sojourn

estancia temporal
Meaning
A temporary stay at a place; to stay temporarily
Example
She enjoyed a brief sojourn in Paris during the summer.
Disfrutó de una breve estancia temporal en París durante el verano.
C2 noun /ˈstrætədʒəm/

stratagem

estratagema
Meaning
a plan or scheme designed to achieve a particular goal, often by trickery
Example
The general devised a clever stratagem to outwit the enemy.
El general ideó una astuta estratagema para engañar al enemigo.
C1 noun /ˈsmætərɪŋ/

smattering

conocimiento superficial
Meaning
A small amount or superficial knowledge of something.
Example
He has a smattering of Spanish.
Él tiene un conocimiento superficial de español.
A2 adjective /ˈsɪŋɡəl/

single

único
Meaning
only one; not one of several
Example
She bought a single ticket for the concert.
Ella compró un boleto sencillo para el concierto.
C1 noun /ˈstæl.i.ən/

stallion

caballo macho para cría
Meaning
An adult male horse that is not castrated, often used for breeding.
Example
The farm owns a powerful stallion for breeding purposes.
La granja posee un caballo macho poderoso para fines de cría.
C1 adjective /ˈspɛktrəl/

spectral

espectral
Meaning
Relating to a ghost or specter; ghostly. Also relating to a spectrum.
Example
The old mansion had a spectral atmosphere at night.
La vieja mansión tenía una atmósfera espectral por la noche.
C1 verb /siːð/

seethe

hirviendo de rabia
Meaning
To be filled with intense but unexpressed anger or agitation.
Example
She was seething with anger after the unfair decision.
Ella estaba hirviendo de rabia después de la decisión injusta.
A2 noun /ˈsɪriz/

Series

serie
Meaning
a number of events, objects, or people of a similar or related kind coming one after another; a set of related television or radio programmes
Example
The detective series ran for five successful seasons.
La serie de detectives tuvo cinco temporadas exitosas.
C1 verb /snɪər/

sneer

sonreír de forma burlona
Meaning
to smile or speak in a mocking or contemptuous way
Example
She sneered at his attempt to sing.
Ella se burló de su intento de cantar.